Railway-car truck



Jan. 28, 1930. L -r 1,745,21 1

RAILWAY CAR TRUCK Filed Feb. 18, 1929 5 Shee s-Sheet 1 Q m a 6:: N

IN NTOR' ATTORNEY Jan. 28, 1930. J ELLIOTT 1,745,211

RAILWAY CAR TRUCK Filed Feb. 18, 1929 5 sheets sheet 2 IN VEN TOR BY KM WWW A TTORNE Y Jan. 28, 1930. J. H. ELLIOTT RAILWAY CAR TRUCK Filed Feb. 18, 1929 5 Sheets-Sheet Jan. 28, 1930. J. H. ELLIOTT- 1,745,211

- RAILWAY CAR TRUCK Filed Feb. 18, 1929 5 Sheets-Sheet 4 Jan. 28, 1930. 101 1,745,211

RAILWAY CAR TRUCK Filed Feb. 18, 1929 5 Sheets-Sheet 5 V Patentedv Jan. 28, 1930 UNITED STATES PATENT OFFICE JOSEPH HOWARD ELLIOTT, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI CAR CORPORATION, OF CINCINNATI, OHIO, A CORPORATION OF OHIO RAILWAY-CAR TRUCK Application filed February 18, 1929. Serial No. 340,727.

My invention relates to railway car trucks, and in particular to a bolster swing motion linkage.

It is the object of my invention to insure free movement on bearings between the springs, side frames and links connecting the side frames and springs.

Referring to the drawings, Figure 1 is a side elevation of the complete truck.

Figure 2 is a plan view thereof.

Figure 3 is a section of the line 33 thereof.

Figure 4 is a section of the line H of Figure 2.

Figure 5 is a section of the line 5-5 of Figure 2 showing in section the swing motion linkage.

Figure 6 is a detailed end elevation thereof.

Figure 7 is a section through the roller saddle.

Figure 8 is a front elevation thereof.

Figure 9 is a section through the roller casing.

Figure 10 is a front elevation thereof.

Figure 11 is a section through the spring roller bearing.

Figure 12 is a rear elevation thereof.

Referring to the drawings in detail, 1 indicates wheels of the truck mounted on the axles 2. These axles are j ournaled in the journal boxes 3 which are carried in the journal brackets 4. The journal brackets are loosely attached by the bolts 5 to the side frame members6, and have interposed between them and the side frames 6 the spring 6 The side frame members are in turn connected to the transverse transom members 7 which have between them the bolster 8.

This bolster has at its extreme ends on either side on the outside of the side frames, the longitudinally disposed elliptic springs comprising an upper section 9, and lower sections 10 and 11. Sections 9 and 10 are connected together by resilient members within the boxes 12. The center of the section 10 rests upon the center of the section 11, which is of greater length, thereby giving a series of spring suspensions of different strength for accommodating different loads and strains. The sections 10 and 11 are supported by the strap 13 from the end of the bolsters.

The extreme ends of the spring section 11 are turned over as at 14 and rest upon a roller 15 which is in turn supported by a spring roller bearing block 16 which has an arcuate cut-away portion 17 lined with a bearing liner 18. This cut-away portion in section is of greater diameter than the roller so that it is free to rotate and rock laterally of the structure. The bearing block is provided with laterally extending shoulders on outwardly extending fingers 19 for centering or locating elliptic spring 11.

The underside of the spring roller bearing block 16 is cut-away in an arcuate groove at 21 so that it can rest upon the swing link 20. The shoulders 18 and 19 take the thrust of the block against the swinging link during the action of the spring and accommodate the longitudinal thrust of the spring as it flexes. The roller 15 is held in position by the downturning ends 14: of the spring 11.

Thus I provide means for accommodating any longitudinal expansion of the spring while at the same time providing a roller bearing for the spring end which will accommodate the spring and the lateral movements of the swing link 20.

The upper end of the swing link 20 rides in a roller saddle 22 in an arcuate groove 23 therein. This saddle is provided with arcuate under cut-away portion 24:, the longitudinal axis of which is transverse to the axis of the groove 23. The large roller 25 fits within this arcuate cut-away portion 24, and its surface is lubricated by a lubricant passing through the passage way 26 in the roller saddle. A depending flange 27 depends from the roller saddle at one end of this cut-away passage 24 and engages one side of the roller 25.

The roller is mounted upon a bearing sleeve 28 carried in the roller casing which is a U- shaped structure in section. This casing is comprised of a front plate 29 and a rear plate 30 joined together by a U-shaped side plate 31 which forms the bottom and sides of the cage. The bearing sleeve 28 serves the dual purpose of a support for the roller 25 and has a hollow bearing sleeve for receiving the supporting bolt 32 which serves to attach the roller cage to one of the vertically disposed portions of the side frame. The cage is also attached by the bolt to such side frame, the bolt 33 passing through the apertures 34: and 35.

Operation In operation the transom 7 being rigidly connected by the bolts 35 to the side frame 6, and the body of the car resting on the king pin socket 36, which in turn is supported by the bolster 8 that is mounted by the bolster brackets 37 upon the leaf springs 9, 10 and 11. The leaf spring 9 has its ends connected by the spring block 12 to the ends of the spring 10 while the center of the spring 10 rests upon the center of the spring 11, springs 10 and 11 being guided by the spring block 12.

The ends of the spring 11 are supported in the particular swing motion linkage which is the special object of this invention.

I have provided a roller bearing support for the spring ends so that rocking of the spring with respect to the swing link 20 will be accommodated and so that any general swinging movement of the spring as a body will be accommodated by the swing links, which are in turn journaled in the bearing block 16. These swing links are not only journaled to swing relatively to the swing 11 at the bottom, but are arranged to swing with respect to the side frames at the top because they are j ournaled at the roller saddle groove 23. The roller saddle in turn either rocks upon or rocks with the roller 25 so as to provide free transverse movement of the side frames with respect to the spring structure with broad bearing surfaces therebetween.

I desire to comprehend within my invention such modifications as may be clearly embraced within my claims and the scope of my invention.

Having thus fully described my invention what I claim is new and desire to secure by Letters Patent, is:

1. In a car truck, a spring support comprising a side frame having oppositely disposed saddles, single swing looped links supported by said saddles and adapted to move transversely and longitudinally thereon, and a spring supported by the said links adapted to swing therewith longitudinally.

2. In a car truck, a spring support comprising a side frame having oppositely disposed saddles, single swing looped links supported by said saddles and adapted to move transversely and longitudinally thereon, and a spring supported by the said links adapted to swing therewith longitudinally, and adapted to rock thereon transversely.

3. In a car truck, a spring support comprising a side frame having oppositely disposed saddles, single swing looped links supported by said saddles and adapted to move transversely and longitudinally thereon, and a spring supported by the said links adapted to swing therewith longitudinally, and adapted to rock thereon transversely, and bearing means between said spring and said swing links to facilitate said rocking without friction.

4. In a car truck, a spring support comprising a side frame, swing links, roller bearings for supporting swing links to accommodate transverse motion thereof, a sliding bearing on each roller bearing for permitting longitudinal movement thereof and roller bearings on said swing links for supporting the ends of the spring.

5. In a car truck, in combination of a side frame, a longitudinally disposed spring whose axis is parallel to the axis of the side frame, transversely disposed swing links, roller bearing means for supporting said links on said side frame, roller bearing means for supporting the ends of said spring on the side frame.

6. In a car truck, a side frame, a longitudinal spring, rectangular swing links, roller bearings for supporting said links on the side frames, attached to the side frame, roller bearings carried by the swing links for supporting the spring ends.

7. In a car truck, a side frame, a longitudinal spring, rectangular swing links, roller bearings for supporting said links on the side frame, attached to the side frame, roller bearings carried by the swing links for supporting the spring ends, a saddle block interposed between each roller bearing on the side frame and each swing link to permit of longitudinal movement of the links, while the transverse movement is accommodated by the roller bearing supporting each link saddle block.

8. In a car truck, a side frame, a longitudinal spring, rectangular swing links, roller bearings for supporting said links on the side frame, attached to the side frame, roller bearings carried by the swing links for supporting the spring ends, a saddle block interposed between each roller bearing on the side frame and each swing link to permit of longitudinal movement of the links, while the transverse movement is accoi'nmodated by the roller bearing supporting each link saddle block, a spring saddle block supporting each roller bearing.

9. In a car truck, a side frame, a longitudinal spring, rectangular swing links, roller bearings for supporting said links 011 the side frame, attached to the side frame, roller bearings carried by the swing links for supporting the spring ends, a saddle block interposed between eaeh roller bearing on the side frame and each swing link to permit of longitudinal movement of the links. while the transverse movement is accommodated by the roller bearing supporting each link saddle block, a spring saddle block supporting each roller bearing, said'block having an enlarged roller bearing supporting surface to permit free lateral movement of said bearing memher as the spring rocks thereon.

10. In a car truck, a side frame, a spring longitudinally disposed, rectangular-shaped link members mounted on said frame and supporting the ends of said spring at either end, a roller cage mounted on said frame for supporting each of said links, a rollerin said cage, a saddle block mounted on said roller, a groove in said saddle block transverse to the axis of rotation of said roller, said groove receiving the upper transverse portion of the swing link, and means for supporting the lat end of the spring on the horizontal lower transverse portion of the link.

11. In a car truck, a side frame, a spring longitudinally disposed, rectangular-shaped link members mounted on said frame and supporting the ends of said spring at either end, a roller cage mounted on said frame for supporting each of said links, a roller in said cage, a saddle block mounted on said roller, a groove in said saddle block transverse to the axis of rotation of said roller, said groove receiving the upper transverse portion of the swing link, and means for supporting the flat end of the spring on the horizontal lower transverse portion of the link, and a bearing member interposed between said link and said spring end.

12. In a car truck, a side frame, a spring lon itudinall dis osed rectangular-sha 36d link members mounted on said frame and supporting the ends of said spring at either end, a roller cage mounted on said frame for supporting each of said links, a roller in said cage, a saddle block mounted on said roller, a groove in said saddle block transverse to the axis of rotation of said roller, said groove receiving the upper transverse portion of the swing link, and means for supporting the fiat end of the spring on the horizontal lower transverse portion of the link, and a bearing member interposed between said link and said spring end, said bearing member comprising a roller and a roller cage bearing block sup porting the roller and mounted on the swing link.

13. In a car truck, a side frame, a spring longitudinally disposed, rectangular-shaped link members mounted on said frame and supporting the ends of said spring at either end, a roller cage mounted on said frame for supporting each of said links, a roller in said cage, a saddle block mounted on said roller, a groove in said saddle block transverse to the axis of rotation of said roller, said groove receiving the upper transverse portion of the swing link, and means for supporting the flat end of the spring on the horizontal lower transverse portion of the link, and a bearing member interposed between said link and said spring end, said bearing member comprising a roller and a roller cage hearing block supporting the roller and mounted on the swing link, and a transverse groove on said block for receiving the transverse portion of the link.

14. In combination of a car truck, of a side frame, a longitudinally disposed spring, transversely disposed swing links, a roller mounted on said frame, a bearing block mounted on the roller having a transverse groove for supporting a link, a spring hearing block having a transverse groove for mounting upon the link, a roller longitudinally disposed on said block operating in a groove therein, said roller engaging in supporting the spring.

15. In combination of a car truck, of a side frame, a longitudinally disposed spring, transversely disposed swing links, a roller mounted on said frame, a bearing block mounted on the rolier having a transverse groove supporting a link, a spring bearing block having a transverse groove for mounting uvon the link, a roller longitudially dispo: d on said block operating in a groove therein, saic roller engaging in supporting the 7 and turned over ends of said spring lapted to engage the end of said roller and said block to retain the roller between the spring and a shoulder on said block.

16. In a car truck, a side frame, a longitudinal spring, a roller cage above and at either end of said spring, a roller, an arcuate bearing block mounted thereon having a. transverse groove with a horizontal bottom, a rectangular link having its upper transverse portion mounted thereon, means of supporting and attaching said roller to the side frame comprising a bolt supporting the roller and attaching the roller cage to the side frame, a second bolt to prevent the rotation of said cage, attaching it to the side frame, a spring bearing block havin a horizontal transverse groove for receiving the lower horizontal portion of the swing link, a longitudinally disposed roller freely mounted on said block folsupporting and receiving the end of the sprlng.

17. In a car truck, a swing link construction comprising a rectangular swing link havmg upper and lower horizontal portions, a roller saddle having a transverse groove for receiving the underside of the upper portion of the link, roller mounted on the side frame, a roller cage, a hearing sleeve extending through said cage supporting said roller, a bolt attending through said bearing sleeve and said cage attaching the cage to the side frame, a second bolt passing through the side frame and the roller cage, and means for supporting the s1 ring end on the lower transverse portion of the link.

18. In a car truck, a swing link construction comprising a rectangular swing link having, upper and lower horizontal portions, a roller saddle having a transverse groove for receiving the underside of the upper portion of the link, a roller mounted on the side frame, a roller cage, a bearing sleeve extending through said cage supporting said roller, a bolt extending through said bearing sleeve and said cage attaching the cage to the side frame, a second bolt passing through the side frame and the roller cage, and means for supporting the spring end on the lower transverse portion of the link, said last mentioned means comprising a spring saddle block having a transverse groove for mounting on the link a longitudinal groove for receiving a roller therein for supporting the spring end.

19. In a car truck, a swing link construction comprising a rectangular swing link having upper and lower horizontal portions, a roller saddl having a transverse groove for receiving the underside of the upper portion of the link, a roller mounted on the side frame, a roller cage, a bearing sleeve extending through said cage supporting said roller, a bolt extending through said bearing sleeve and said cage attaching the cage to the side frame, a second bolt passing through the side frame and the roller cage, and means for supporting the spring end on the lower transverse portion of the link, said last mentioned means comprising a spring saddle block having a transverse groove for mounting on the link a longitudinal groove for receiving a roller, a roller therein for supporting the spring end, and shoulder members on said block for engaging the side of said link and spring.

20. In a car truck, a swing link construction comprising a rectangular swing link having upper and lower horizontal portions, a roller saddle having a transverse groove for receiving the underside of the upper portion of the link, a roller mounted on the side frame, a roller cage, a bearing sleeve extending through said cage supporting said roller, a bolt extending through said bearing sleeve and said cage attaching the cage to the side frame, a second bolt passing through the side frame and the roller cage, and means for supporting the spring end on the lower transverse portion of the link, said last mentioned means comprising a spring saddle block having a transverse groove for mounting on the link a longitudinal groove for receiving a roller, a roller therein for supporting the spring end, and shoulder members on said block for engaging the side of said link and spring, a shoulder at one end of the roller groove and a depending end of the spring adapted to engage the other end of the roller to hold it in the groove.

21. In a car truck, a spring support comprising a side frame having oppositely disposed projections, a longitudinal spring, a

link at each end of said spring for supporting the ends thereof, said links being sup ported by said projections, means for permitting rotation of the link and spring on an axis transverse to the spring, means for permitting rotation of the link and spring about an axis parallel to the spring axis, means for permitting rotation of the link on an axis transverse of the side frame, and means of permitting rotation of the link on an axis parallel to the axis of the side frame.

22. In a car truck, side frames having oppositely disposed saddles, a pair of transoms, a bolster therebetween, springs supporting said bolster and a single link means for swingingly supporting each end of said springs so arranged that the connection permits relative longitudinal movement and transverse movement between the springs and side frames, said links being supported by said saddles.

23. In a car truck, side frames, a transom, bolster therebetween, springs supporting said bolster and means of swingingly supporting the ends of said springs so arranged that the connection permits relative longitudinal movement and transverse movement between the prings and side frame, said means comp11. 11g a link ateither end of the spring, a roller bearing between the spring ends and the link.

24. In a car truck, side frames, a transom, a bolster therebetween, springs supporting said bolster and means of swingingly supporting the ends of said springs so arranged that the connection permits relative longitudinal movement and transverse movement between the springs and side frame, said means comprising a link at either end of the spring, a roller bearing between the spring ends and the link, and roller bearings between the links and the side frames.

25. In a car truck, side frames, a transom, a bolster therebetween, springs supporting said bolster and means of swinginglv supporting the ends of said springs so arranged that the connection permits relative longitudinal movement and transverse movemdiit between the springs and side frame, said means comprising a link at either end of the spring, a roller bearing between the spring ends and the link, and roller bearings between the links and the side frames, and sliding bearings between the spring, roller bearing and the link and a sliding bearing between the frame roller bearing and the link.

In testimony whereof. I aiiix my signature.

JOSEPH HOWARD ELLIOTT. 

